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Association between first pregnancy and adverse outcomes in subsequent pregnancy

Association between first pregnancy and adverse outcomes in subsequent pregnancy: a multicenter retrospective cohort study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR1900027525
Enrollment
Unknown
Registered
2019-11-17
Start date
2020-01-01
Completion date
Unknown
Last updated
2019-11-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

pregnancy outcome

Interventions

Case series:No interventions

Sponsors

International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1) Women who had delivery or abortion in listed hospitals from June 2014 to June 2019; 2) Gravidity >= 2; 2) Parity>= 1 and at least one live birth.

Exclusion criteria

Exclusion criteria: 1) The date of previous delivery is unknown; 2) Women with severe systemic diseases, such as cancer, heart diseases, mental diseases, etc.; 3) Foreigners; 4) Too much data missing.

Design outcomes

Primary

MeasureTime frame
spontaneous abortion;preterm delivery;live birth;still birth;induced labor;induced abortion;pregnancy maternal complications;abnormal fetal appurtenances;labor complications;gestational age;birth weight;Neonatal disease;Birth defect;Apgar score;mode of delivery;—

Secondary

MeasureTime frame
Sociodemographic data;childbearing history;medical history;History of contraception;Feeding history;prenatal care visits;Mode of conception;—

Countries

China

Contacts

Public ContactHefeng Huang

International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University

huanghefg@sjtu.edu.cn+86 021 64073897

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026